<template>
    <!--地图挂载dom-->
    <div id="map">
    </div>
</template>

<script>
    //引入依赖
    import {Map, View} from 'ol'
    import XYZ from 'ol/source/XYZ'
    import TileLayer from 'ol/layer/Tile'
    import EChartsLayer from 'ol-echarts'
    import * as echarts from 'echarts'

    export default {
        name: 'ProjectScatterDiagram',
        props: {
            msg: String
        },
        mounted() {
            //初始化地图
            let map = new Map({
                target: 'map',//指定挂载dom，注意必须是id
                layers: [
                    new TileLayer({
                        source: new XYZ({
                            url: 'http://cache1.arcgisonline.cn/arcgis/rest/services/ChinaOnline' +
                                'StreetPurplishBlue/MapServer/tile/{z}/{y}/{x}'
                        })
                    })
                ],
                //配置视图
                view: new View({
                    center: [113.24981689453125, 23.126468438108688], //视图中心位置
                    projection: "EPSG:4326", //指定投影
                    zoom: 5   //缩放到的级别
                })
            });
            //将echarts图标地图生成一个echarts的图层
            let echartsLayer = new EChartsLayer(this.getOption());
            //将echarts生成的图层追加到openlayers的图层当中
            echartsLayer.appendTo(map);
        },
        methods: {
            getOption: function () {
                let option;
                let data = [
                    {name: '海门', value: 9},
                    {name: '鄂尔多斯', value: 12},
                    {name: '招远', value: 12},
                    {name: '舟山', value: 12},
                    {name: '齐齐哈尔', value: 14},
                    {name: '盐城', value: 15},
                    {name: '赤峰', value: 16},
                    {name: '青岛', value: 18},
                    {name: '乳山', value: 18},
                    {name: '金昌', value: 19},
                    {name: '泉州', value: 21},
                    {name: '莱西', value: 21},
                    {name: '日照', value: 21},
                    {name: '胶南', value: 22},
                    {name: '南通', value: 23},
                    {name: '拉萨', value: 24},
                    {name: '云浮', value: 24},
                    {name: '梅州', value: 25},
                    {name: '文登', value: 25},
                    {name: '上海', value: 25},
                    {name: '攀枝花', value: 25},
                    {name: '威海', value: 25},
                    {name: '承德', value: 25},
                    {name: '厦门', value: 26},
                    {name: '汕尾', value: 26},
                    {name: '潮州', value: 26},
                    {name: '丹东', value: 27},
                    {name: '太仓', value: 27},
                    {name: '曲靖', value: 27},
                    {name: '烟台', value: 28},
                    {name: '福州', value: 29},
                    {name: '瓦房店', value: 30},
                    {name: '即墨', value: 30},
                    {name: '抚顺', value: 31},
                    {name: '玉溪', value: 31},
                    {name: '张家口', value: 31},
                    {name: '阳泉', value: 31},
                    {name: '莱州', value: 32},
                    {name: '湖州', value: 32},
                    {name: '汕头', value: 32},
                    {name: '昆山', value: 33},
                    {name: '宁波', value: 33},
                    {name: '湛江', value: 33},
                    {name: '揭阳', value: 34},
                    {name: '荣成', value: 34},
                    {name: '连云港', value: 35},
                    {name: '葫芦岛', value: 35},
                    {name: '常熟', value: 36},
                    {name: '东莞', value: 36},
                    {name: '河源', value: 36},
                    {name: '淮安', value: 36},
                    {name: '泰州', value: 36},
                    {name: '南宁', value: 37},
                    {name: '营口', value: 37},
                    {name: '惠州', value: 37},
                    {name: '江阴', value: 37},
                    {name: '蓬莱', value: 37},
                    {name: '韶关', value: 38},
                    {name: '嘉峪关', value: 38},
                    {name: '广州', value: 38},
                    {name: '延安', value: 38},
                    {name: '太原', value: 39},
                    {name: '清远', value: 39},
                    {name: '中山', value: 39},
                    {name: '昆明', value: 39},
                    {name: '寿光', value: 40},
                    {name: '盘锦', value: 40},
                    {name: '长治', value: 41},
                    {name: '深圳', value: 41},
                    {name: '珠海', value: 42},
                    {name: '宿迁', value: 43},
                    {name: '咸阳', value: 43},
                    {name: '铜川', value: 44},
                    {name: '平度', value: 44},
                    {name: '佛山', value: 44},
                    {name: '海口', value: 44},
                    {name: '江门', value: 45},
                    {name: '章丘', value: 45},
                    {name: '肇庆', value: 46},
                    {name: '大连', value: 47},
                    {name: '临汾', value: 47},
                    {name: '吴江', value: 47},
                    {name: '石嘴山', value: 49},
                    {name: '沈阳', value: 50},
                    {name: '苏州', value: 50},
                    {name: '茂名', value: 50},
                    {name: '嘉兴', value: 51},
                    {name: '长春', value: 51},
                    {name: '胶州', value: 52},
                    {name: '银川', value: 52},
                    {name: '张家港', value: 52},
                    {name: '三门峡', value: 53},
                    {name: '锦州', value: 54},
                    {name: '南昌', value: 54},
                    {name: '柳州', value: 54},
                    {name: '三亚', value: 54},
                    {name: '自贡', value: 56},
                    {name: '吉林', value: 56},
                    {name: '阳江', value: 57},
                    {name: '泸州', value: 57},
                    {name: '西宁', value: 57},
                    {name: '宜宾', value: 58},
                    {name: '呼和浩特', value: 58},
                    {name: '成都', value: 58},
                    {name: '大同', value: 58},
                    {name: '镇江', value: 59},
                    {name: '桂林', value: 59},
                    {name: '张家界', value: 59},
                    {name: '宜兴', value: 59},
                    {name: '北海', value: 60},
                    {name: '西安', value: 61},
                    {name: '金坛', value: 62},
                    {name: '东营', value: 62},
                    {name: '牡丹江', value: 63},
                    {name: '遵义', value: 63},
                    {name: '绍兴', value: 63},
                    {name: '扬州', value: 64},
                    {name: '常州', value: 64},
                    {name: '潍坊', value: 65},
                    {name: '重庆', value: 66},
                    {name: '台州', value: 67},
                    {name: '南京', value: 67},
                    {name: '滨州', value: 70},
                    {name: '贵阳', value: 71},
                    {name: '无锡', value: 71},
                    {name: '本溪', value: 71},
                    {name: '克拉玛依', value: 72},
                    {name: '渭南', value: 72},
                    {name: '马鞍山', value: 72},
                    {name: '宝鸡', value: 72},
                    {name: '焦作', value: 75},
                    {name: '句容', value: 75},
                    {name: '北京', value: 79},
                    {name: '徐州', value: 79},
                    {name: '衡水', value: 80},
                    {name: '包头', value: 80},
                    {name: '绵阳', value: 80},
                    {name: '乌鲁木齐', value: 84},
                    {name: '枣庄', value: 84},
                    {name: '杭州', value: 84},
                    {name: '淄博', value: 85},
                    {name: '鞍山', value: 86},
                    {name: '溧阳', value: 86},
                    {name: '库尔勒', value: 86},
                    {name: '安阳', value: 90},
                    {name: '开封', value: 90},
                    {name: '济南', value: 92},
                    {name: '德阳', value: 93},
                    {name: '温州', value: 95},
                    {name: '九江', value: 96},
                    {name: '邯郸', value: 98},
                    {name: '临安', value: 99},
                    {name: '兰州', value: 99},
                    {name: '沧州', value: 100},
                    {name: '临沂', value: 103},
                    {name: '南充', value: 104},
                    {name: '天津', value: 105},
                    {name: '富阳', value: 106},
                    {name: '泰安', value: 112},
                    {name: '诸暨', value: 112},
                    {name: '郑州', value: 113},
                    {name: '哈尔滨', value: 114},
                    {name: '聊城', value: 116},
                    {name: '芜湖', value: 117},
                    {name: '唐山', value: 119},
                    {name: '平顶山', value: 119},
                    {name: '邢台', value: 119},
                    {name: '德州', value: 120},
                    {name: '济宁', value: 120},
                    {name: '荆州', value: 127},
                    {name: '宜昌', value: 130},
                    {name: '义乌', value: 132},
                    {name: '丽水', value: 133},
                    {name: '洛阳', value: 134},
                    {name: '秦皇岛', value: 136},
                    {name: '株洲', value: 143},
                    {name: '石家庄', value: 147},
                    {name: '莱芜', value: 148},
                    {name: '常德', value: 152},
                    {name: '保定', value: 153},
                    {name: '湘潭', value: 154},
                    {name: '金华', value: 157},
                    {name: '岳阳', value: 169},
                    {name: '长沙', value: 175},
                    {name: '衢州', value: 177},
                    {name: '廊坊', value: 193},
                    {name: '菏泽', value: 194},
                    {name: '合肥', value: 229},
                    {name: '武汉', value: 273},
                    {name: '大庆', value: 279}
                ];
                let geoCoordMap = {
                    海门: [121.15, 31.89],
                    鄂尔多斯: [109.781327, 39.608266],
                    招远: [120.38, 37.35],
                    舟山: [122.207216, 29.985295],
                    齐齐哈尔: [123.97, 47.33],
                    盐城: [120.13, 33.38],
                    赤峰: [118.87, 42.28],
                    青岛: [120.33, 36.07],
                    乳山: [121.52, 36.89],
                    金昌: [102.188043, 38.520089],
                    泉州: [118.58, 24.93],
                    莱西: [120.53, 36.86],
                    日照: [119.46, 35.42],
                    胶南: [119.97, 35.88],
                    南通: [121.05, 32.08],
                    拉萨: [91.11, 29.97],
                    云浮: [112.02, 22.93],
                    梅州: [116.1, 24.55],
                    文登: [122.05, 37.2],
                    上海: [121.48, 31.22],
                    攀枝花: [101.718637, 26.582347],
                    威海: [122.1, 37.5],
                    承德: [117.93, 40.97],
                    厦门: [118.1, 24.46],
                    汕尾: [115.375279, 22.786211],
                    潮州: [116.63, 23.68],
                    丹东: [124.37, 40.13],
                    太仓: [121.1, 31.45],
                    曲靖: [103.79, 25.51],
                    烟台: [121.39, 37.52],
                    福州: [119.3, 26.08],
                    瓦房店: [121.979603, 39.627114],
                    即墨: [120.45, 36.38],
                    抚顺: [123.97, 41.97],
                    玉溪: [102.52, 24.35],
                    张家口: [114.87, 40.82],
                    阳泉: [113.57, 37.85],
                    莱州: [119.942327, 37.177017],
                    湖州: [120.1, 30.86],
                    汕头: [116.69, 23.39],
                    昆山: [120.95, 31.39],
                    宁波: [121.56, 29.86],
                    湛江: [110.359377, 21.270708],
                    揭阳: [116.35, 23.55],
                    荣成: [122.41, 37.16],
                    连云港: [119.16, 34.59],
                    葫芦岛: [120.836932, 40.711052],
                    常熟: [120.74, 31.64],
                    东莞: [113.75, 23.04],
                    河源: [114.68, 23.73],
                    淮安: [119.15, 33.5],
                    泰州: [119.9, 32.49],
                    南宁: [108.33, 22.84],
                    营口: [122.18, 40.65],
                    惠州: [114.4, 23.09],
                    江阴: [120.26, 31.91],
                    蓬莱: [120.75, 37.8],
                    韶关: [113.62, 24.84],
                    嘉峪关: [98.289152, 39.77313],
                    广州: [113.23, 23.16],
                    延安: [109.47, 36.6],
                    太原: [112.53, 37.87],
                    清远: [113.01, 23.7],
                    中山: [113.38, 22.52],
                    昆明: [102.73, 25.04],
                    寿光: [118.73, 36.86],
                    盘锦: [122.070714, 41.119997],
                    长治: [113.08, 36.18],
                    深圳: [114.07, 22.62],
                    珠海: [113.52, 22.3],
                    宿迁: [118.3, 33.96],
                    咸阳: [108.72, 34.36],
                    铜川: [109.11, 35.09],
                    平度: [119.97, 36.77],
                    佛山: [113.11, 23.05],
                    海口: [110.35, 20.02],
                    江门: [113.06, 22.61],
                    章丘: [117.53, 36.72],
                    肇庆: [112.44, 23.05],
                    大连: [121.62, 38.92],
                    临汾: [111.5, 36.08],
                    吴江: [120.63, 31.16],
                    石嘴山: [106.39, 39.04],
                    沈阳: [123.38, 41.8],
                    苏州: [120.62, 31.32],
                    茂名: [110.88, 21.68],
                    嘉兴: [120.76, 30.77],
                    长春: [125.35, 43.88],
                    胶州: [120.03336, 36.264622],
                    银川: [106.27, 38.47],
                    张家港: [120.555821, 31.875428],
                    三门峡: [111.19, 34.76],
                    锦州: [121.15, 41.13],
                    南昌: [115.89, 28.68],
                    柳州: [109.4, 24.33],
                    三亚: [109.511909, 18.252847],
                    自贡: [104.778442, 29.33903],
                    吉林: [126.57, 43.87],
                    阳江: [111.95, 21.85],
                    泸州: [105.39, 28.91],
                    西宁: [101.74, 36.56],
                    宜宾: [104.56, 29.77],
                    呼和浩特: [111.65, 40.82],
                    成都: [104.06, 30.67],
                    大同: [113.3, 40.12],
                    镇江: [119.44, 32.2],
                    桂林: [110.28, 25.29],
                    张家界: [110.479191, 29.117096],
                    宜兴: [119.82, 31.36],
                    北海: [109.12, 21.49],
                    西安: [108.95, 34.27],
                    金坛: [119.56, 31.74],
                    东营: [118.49, 37.46],
                    牡丹江: [129.58, 44.6],
                    遵义: [106.9, 27.7],
                    绍兴: [120.58, 30.01],
                    扬州: [119.42, 32.39],
                    常州: [119.95, 31.79],
                    潍坊: [119.1, 36.62],
                    重庆: [106.54, 29.59],
                    台州: [121.420757, 28.656386],
                    南京: [118.78, 32.04],
                    滨州: [118.03, 37.36],
                    贵阳: [106.71, 26.57],
                    无锡: [120.29, 31.59],
                    本溪: [123.73, 41.3],
                    克拉玛依: [84.77, 45.59],
                    渭南: [109.5, 34.52],
                    马鞍山: [118.48, 31.56],
                    宝鸡: [107.15, 34.38],
                    焦作: [113.21, 35.24],
                    句容: [119.16, 31.95],
                    北京: [116.46, 39.92],
                    徐州: [117.2, 34.26],
                    衡水: [115.72, 37.72],
                    包头: [110, 40.58],
                    绵阳: [104.73, 31.48],
                    乌鲁木齐: [87.68, 43.77],
                    枣庄: [117.57, 34.86],
                    杭州: [120.19, 30.26],
                    淄博: [118.05, 36.78],
                    鞍山: [122.85, 41.12],
                    溧阳: [119.48, 31.43],
                    库尔勒: [86.06, 41.68],
                    安阳: [114.35, 36.1],
                    开封: [114.35, 34.79],
                    济南: [117, 36.65],
                    德阳: [104.37, 31.13],
                    温州: [120.65, 28.01],
                    九江: [115.97, 29.71],
                    邯郸: [114.47, 36.6],
                    临安: [119.72, 30.23],
                    兰州: [103.73, 36.03],
                    沧州: [116.83, 38.33],
                    临沂: [118.35, 35.05],
                    南充: [106.110698, 30.837793],
                    天津: [117.2, 39.13],
                    富阳: [119.95, 30.07],
                    泰安: [117.13, 36.18],
                    诸暨: [120.23, 29.71],
                    郑州: [113.65, 34.76],
                    哈尔滨: [126.63, 45.75],
                    聊城: [115.97, 36.45],
                    芜湖: [118.38, 31.33],
                    唐山: [118.02, 39.63],
                    平顶山: [113.29, 33.75],
                    邢台: [114.48, 37.05],
                    德州: [116.29, 37.45],
                    济宁: [116.59, 35.38],
                    荆州: [112.239741, 30.335165],
                    宜昌: [111.3, 30.7],
                    义乌: [120.06, 29.32],
                    丽水: [119.92, 28.45],
                    洛阳: [112.44, 34.7],
                    秦皇岛: [119.57, 39.95],
                    株洲: [113.16, 27.83],
                    石家庄: [114.48, 38.03],
                    莱芜: [117.67, 36.19],
                    常德: [111.69, 29.05],
                    保定: [115.48, 38.85],
                    湘潭: [112.91, 27.87],
                    金华: [119.64, 29.12],
                    岳阳: [113.09, 29.37],
                    长沙: [113, 28.21],
                    衢州: [118.88, 28.97],
                    廊坊: [116.7, 39.53],
                    菏泽: [115.480656, 35.23375],
                    合肥: [117.27, 31.86],
                    武汉: [114.31, 30.52],
                    大庆: [125.03, 46.58]
                };
                let convertData = function (data) {
                    let res = [];
                    for (let i = 0; i < data.length; i++) {
                        let geoCoord = geoCoordMap[data[i].name];
                        if (geoCoord) {
                            res.push({
                                name: data[i].name,
                                value: geoCoord.concat(data[i].value)
                            });
                        }
                    }
                    return res;
                };

                function renderItem(params, api) {
                    let coords = [
                        [116.7, 39.53],
                        [103.73, 36.03],
                        [112.91, 27.87],
                        [120.65, 28.01],
                        [119.57, 39.95]
                    ];
                    let points = [];
                    for (let i = 0; i < coords.length; i++) {
                        points.push(api.coord(coords[i]));
                    }
                    let color = api.visual('color');
                    return {
                        type: 'polygon',
                        shape: {
                            points: echarts.graphic.clipPointsByRect(points, {
                                x: params.coordSys.x,
                                y: params.coordSys.y,
                                width: params.coordSys.width,
                                height: params.coordSys.height
                            })
                        },
                        style: api.style({
                            fill: color,
                            stroke: echarts.color.lift(color)
                        })
                    };
                }

                option = {
                    backgroundColor: 'transparent',
                    title: {
                        text: '全国主要城市空气质量',
                        subtext: 'data from PM25.in',
                        sublink: 'http://www.pm25.in',
                        left: 'center',
                        textStyle: {
                            color: '#fff'
                        }
                    },
                    tooltip: {
                        trigger: 'item'
                    },
                    bmap: {
                        center: [104.114129, 37.550339],
                        zoom: 5,
                        roam: true,
                        mapStyle: {
                            styleJson: [
                                {
                                    featureType: 'water',
                                    elementType: 'all',
                                    stylers: {
                                        color: '#044161'
                                    }
                                },
                                {
                                    featureType: 'land',
                                    elementType: 'all',
                                    stylers: {
                                        color: '#004981'
                                    }
                                },
                                {
                                    featureType: 'boundary',
                                    elementType: 'geometry',
                                    stylers: {
                                        color: '#064f85'
                                    }
                                },
                                {
                                    featureType: 'railway',
                                    elementType: 'all',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'highway',
                                    elementType: 'geometry',
                                    stylers: {
                                        color: '#004981'
                                    }
                                },
                                {
                                    featureType: 'highway',
                                    elementType: 'geometry.fill',
                                    stylers: {
                                        color: '#005b96',
                                        lightness: 1
                                    }
                                },
                                {
                                    featureType: 'highway',
                                    elementType: 'labels',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'arterial',
                                    elementType: 'geometry',
                                    stylers: {
                                        color: '#004981'
                                    }
                                },
                                {
                                    featureType: 'arterial',
                                    elementType: 'geometry.fill',
                                    stylers: {
                                        color: '#00508b'
                                    }
                                },
                                {
                                    featureType: 'poi',
                                    elementType: 'all',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'green',
                                    elementType: 'all',
                                    stylers: {
                                        color: '#056197',
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'subway',
                                    elementType: 'all',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'manmade',
                                    elementType: 'all',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'local',
                                    elementType: 'all',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'arterial',
                                    elementType: 'labels',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                },
                                {
                                    featureType: 'boundary',
                                    elementType: 'geometry.fill',
                                    stylers: {
                                        color: '#029fd4'
                                    }
                                },
                                {
                                    featureType: 'building',
                                    elementType: 'all',
                                    stylers: {
                                        color: '#1a5787'
                                    }
                                },
                                {
                                    featureType: 'label',
                                    elementType: 'all',
                                    stylers: {
                                        visibility: 'off'
                                    }
                                }
                            ]
                        }
                    },
                    series: [
                        {
                            name: 'pm2.5',
                            type: 'scatter',
                            coordinateSystem: 'bmap',
                            data: convertData(data),
                            encode: {
                                value: 2
                            },
                            symbolSize: function (val) {
                                return val[2] / 10;
                            },
                            label: {
                                formatter: '{b}',
                                position: 'right'
                            },
                            itemStyle: {
                                color: '#ddb926'
                            },
                            emphasis: {
                                label: {
                                    show: true
                                }
                            }
                        },
                        {
                            name: 'Top 5',
                            type: 'effectScatter',
                            coordinateSystem: 'bmap',
                            data: convertData(
                                data
                                    .sort(function (a, b) {
                                        return b.value - a.value;
                                    })
                                    .slice(0, 6)
                            ),
                            encode: {
                                value: 2
                            },
                            symbolSize: function (val) {
                                return val[2] / 10;
                            },
                            showEffectOn: 'emphasis',
                            rippleEffect: {
                                brushType: 'stroke'
                            },
                            hoverAnimation: true,
                            label: {
                                formatter: '{b}',
                                position: 'right',
                                show: true
                            },
                            itemStyle: {
                                color: '#f4e925',
                                shadowBlur: 10,
                                shadowColor: '#333'
                            },
                            zlevel: 1
                        },
                        {
                            type: 'custom',
                            coordinateSystem: 'bmap',
                            renderItem: renderItem,
                            itemStyle: {
                                opacity: 0.5
                            },
                            animation: false,
                            silent: true,
                            data: [0],
                            z: -10
                        }
                    ]
                };
                return option;
            }
        }
    }
</script>

<style scoped>
    #map {
        width: 100%;
        height: 100%;
    }
</style>
